EP 0486332 A1 19920520 - Performance operational amplifier and method of amplification.
Title (en)
Performance operational amplifier and method of amplification.
Title (de)
Leistungsoperationsverstärker und Verstärkungsverfahren.
Title (fr)
Amplificateur opérationnel de puissance et méthode d'amplification.
Publication
Application
Priority
FR 9012329 A 19901005
Abstract (en)
An operational amplifier (10) is provided which includes a differential input stage (18) for receiving differential signals. A differential loop (30, 64), (86) amplifies said differential signals. The amplified differential signals are output on a pair differential output terminals (80, 84). A common mode loop (54), (30, 64) maintains the mean voltage of the amplified differential signals at a preselected value. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
H03F 3/3023 (2013.01 - EP US); H03F 3/3062 (2013.01 - EP US); H03F 3/45192 (2013.01 - EP US); H03F 3/45475 (2013.01 - EP US); H03F 3/45659 (2013.01 - EP US); H03F 3/45946 (2013.01 - EP US); H03F 2200/153 (2013.01 - EP US); H03F 2203/45471 (2013.01 - EP US)
Citation (search report)
- [X] EP 0325299 A2 19890726 - NEC CORP [JP]
- [A] DE 3725323 A1 19880211 - SGS MICROELETTRONICA SPA [IT]
- [X] IEEE JOURNAL OF SOLID-STATE CIRCUITS. vol. 24, no. 3, June 1989, NEW YORK US pages 690 - 697; M. FERRO ET AL: 'A Floating CMOS Bandgap Voltage Reference for Differential Applications'
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
FR 2667744 A1 19920410; FR 2667744 B1 19960802; DE 69119036 D1 19960530; DE 69119036 T2 19961121; EP 0486332 A1 19920520; EP 0486332 B1 19960424; JP 3272380 B2 20020408; JP H04249411 A 19920904; US 5216380 A 19930601
DOCDB simple family (application)
FR 9012329 A 19901005; DE 69119036 T 19911004; EP 91402659 A 19911004; JP 25809691 A 19911004; US 76990691 A 19911001